Evolution

What is a change in an organism that allows for it to survive in its environment?

• homologous
• vestigial
• variation
• adaptation

What is the study of organisms at the early stages of development?

• DNA studies
• embryology 
• extinction
• fossil record

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What is this an example of?

• diversity of species
• variation
• vestigial structures
• DNA studies

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What is this an example of?

• vestigial structures
• embryology
• homologous structures
• fossil record

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Predict which moth would increase in population

• light 
• dark

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When the DNA of an organism is altered it is referred to as…

• Mutation
• Gene Flow
• Genetic Drift
• Sexual Selection

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Fossils sometimes show that a single species or a small group of species has evolved into diverse forms that live in different ways. An example of this would be a group of present-day mammals all having a common ancestor.
Which term describes this phenomenon?________________

• Adaptive radiation
• Gradualism
  

Biologists have considered two different explanations to the rate of evolution: gradualism and punctuated equilibrium. How would the fossil record indicate that an organism had evolved via punctuated equilibrium?

• People selectively breeding The fossil record would show little to no change over a period of time followed by a rapid and sudden change
• The fossil record would show a slow, steady rate of change from a common ancestor.
• The fossil record would be incomplete, and numerous holes would exist within the ancestral record.
• The fossil record would show constant change over a period of time.

Which statement below most closely explains the link between jaw size and hominid evolution? 

• increase in brain capacity, bipedalism, use of tools
• thickening of the skull, protruding teeth, organized hunting
• large canine teeth, small skulls, diet of coarse plant material
• larger body size, broad forehead, smaller brains

Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased. Which of the following describes a necessary condition for these changes in the finch populations to occur?

• limited food resources
• fewer mutations
• limited beak variations
• overproduction of offspring